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VTags

If you use Vi or Vim to edit Verilog files, VTAGS
(1KB) is for you. We've found this tool to be invaluable as we write or
dig through Verilog code.

VTAGS is an Perl script used to create a Vi/Vim tags file from Verilog
source files. When used with Vi/Vim, a tags file lets you jump quickly
between files as you peruse source code.

VTAGS searches for module,
task, and function
declarations in the Verilog source(s) and adds them to the tags file. Once
this is done, you use the ctrl-],
ctrl-t, and :ta
commands to cruise through your source files.

The Perl script is rather brute force and is not a full Verilog parser
- it can get confused! If you use a clean Verilog coding style, you should
have no problems. The script currently only accepts file names that end in
.v. If you don't like this, feel free to change the source code.

Obviously, you need to have Perl on your system to use our vtags
script. You can find versions of Perl on the
web for most any O/S in common use.